Use your own home finaces as an example and your wifes’ credit card.
“Use your own home finaces as an example and your wifes’ credit card.”
Better yet ... use your Amex to pay your MC, then tell the wife it doesn’t matter how you did it, the debt is off the books. When the MC bill comes, patiently explain how that works to the bank. If you have to, get a loan and pay off MC. You will then have paid off both debts and will only have to worry about the loan as a separate debt. Later.